Speed-regulator.



No. 741,158. PATENTED OCT. 13, 1903. T. & 0. T. NESOM. SPEED REGULATOR.

APPLICATION FILED OOT.11, 1902. N0 MODEL. 2 SHEETS-SHEET 1.

4 INVENTORS mom/a8 276.5071? .77 7%, %4mm/. B y fl zzwles 1717660712 WW4 ATTORNEY.

No. 741,158. PATEN-TED OCT. 13,1903.

' T. & o. T. NESOM.

SPEED} REGULATOR.

APPLICATION TILED 001211, 1902.

N0 MODEL. 2 SHEETS-SHEET 2.

INVENTOR5 Patented October 13, 1903.

UNlTFD Stamps Farsi rric THOMAS NESOM AND CHARLES T. NESOM, OFINDIANAPOLIS, INDIANA.

"SPEED-REGULATOR.

SPECIFICATION forming part of Letters Patent No. 741,158, dated October13, 1903.

Application filed October 11, 1902. 7 Serial No. 126,828. (No model.)

T0 at whom it may concern.-

Be it known that we, THOMAS NESOM and CHARLES T. NEsoM, citizens of theUnited States, residing at Indianapolis, in the county of Marion andState of Indiana, have invented certain new and useful Improvements inSpeed-Regulators, of which the following is a specification.

This invention relates to improvements in variable-speed regulatorsinvolving a driving and a driven disk interposed between the motor andthe work; and the object of the invention is, first, to provide meansthrough a double pair of friction-wheels placed on opposite sides of apair of disks revolving in the same plane for driving one disk from theother and for varying the speed of the driven disk by changing thepoints of contact between the two disk centers of the friction-wheelswith said disks; second, to provide means for regulating the adhesion ortraction between the friction-wheels and the disks, and, third, toprovide a simple, durable, and easily-adj usted speed-regulator.

The object also is to improve the devicein many minor details, whichwill all be fully described in the specification and pointed out in theclaims.

We accomplish the objects of the invention by the mechanism illustratedin the accompanying drawings, in which- Fi ure 1 is an under side planview of our invention; Fig. 2, a side elevation of same; Fig. 3, an endview with one of the hangers broken away to show the parts behind; Fig.4, a detail in transverse section of one of the friction-wheels; Fig. 5,an under side view of a modified form of our invention adapted to beswung from the driving-shaft; Fig. 6, a

view in side elevation of same; Fig. 7, a dctail in top view of thesplit disk of the modificd form shown in Fig. 6, showing the manner ofbolting the two parts together; and Fig. 8 a detail in side elevation ofsame.

Like characters of reference indicate like parts throughout the severalviews of the drawings.

9 is a plate, preferably of wood, which is bolted or otherwise securelyfastened to the ceiling of the room over the machine to be operated.Secured to this wooden plate 9 are the two metal plates 10 10, from eachof which depend a pair of hangers 11 11. These hangers have boxes inwhich the shafts 12 and 13 are mounted. Mounted on shaft 12 between theadjacent pair of hangers is the disk 14, and mounted on shaft 13 betweenthe hangers which support it is the disk 15. These two disks are madeout of circular plates of sheet steel or iron and are in the same vertical plane. Mounted on shaft 12 is the pulley 16, which is connected toany suitable motor by belt 17. Mounted on shaft 13 is the pulley 18,which is connected by belt 19 with a pulley on the machine to be driven.(Not shown.)

The plates 10 10 have the box-hangers 20 and 21, respectively, in whichis mounted the shaft 22. Mounted on one end of said shaft 22 is thesprocket-wheel 23, having the chain 2 1, which extends down within reachof the operator below. The other end of shaft 22 is screw-threaded, andthe box 21, which receives it, is correspondingly screw-threaded.Mounted on shaft 22 are the two collars 25 and 26, which may be held ata fixed position by means of set-screws, as shown. Suspended from thisshaft 22, between the said two collars, are the hangers 27 and 28,having eyes through which the shaft 22 passes, there by forminghinges,as shown. The lower ends of said hangers have boxes in whichshort shafts are mounted. There is one shaft for each hanger, andmounted on the twoprojecting ends of each shaft are the frictionwheels29-four in all. These friction-wheels are in pairs, with one of the twodisks between each pair, and the opposing frictionwheels are broughtagainst the respective separating-disk by the bolt 30, which connectsthe two hangers 27 and 28. The tension is regulated by tightening orloosening the nut on said bolt.

The rotation of the shaft 22 causes it to move in a longitudinaldirection, thereby car-' rying the hangers 27 and 28 and theirrespective friction wheels. The centers of the shafts on which wheels 29are mounted are in the same plane as the longitudinal centers of shafts12 and 13, thereby causing the friction-wheels to contact with the disksat points on a line drawn from the center of shaft 12 to the center ofshaft 13. When the wheels 29 are in their closest relation to shaft 12,the

disk 15 will be rotated at its slowest speed, and the speed of thelatter will be increased proportionately with the movement of thefriction-Wheels toward the shaft 13.

The construction of the friction-wheels 29 is shown in Fig. 4, in whicha hub 3O has the web 31, with the half-rim 32. An opposite half-rim 33has a web 34, through which it is bolted or riveted to the web 31. Thecombined rim from the two halves 32 and 33 has a dovetailed groovethrough its center in which is seated a facing 35, of leather or othermaterial, to increase the traction between thewheels and disks. The rim32 33 need not be finished or trued up; but the leather facing afterinsertion is turned true to the axis of its shaft.

In the modification shown in Figs. 5 to- 8, inclusive, the two disks 36and 37 are mounted in a suitable frame 38, and the whole device issuspended from the main or line shaft of the shop above the machine towhich power is to be applied. The frame has the twopart boxes 39, whichare taken apart to receive the line-shaft 40. The disk 36 is a splitdisk, havinga split hub 41. The two straight edges of the split disk arejoined bya tongue and groove 42, andthe two-part hub is bolted together,as shown in Figs. 7 and 8. A screw-shaft 42 has the two brackets 43 and44 hinged to it and held a regulated distance apart by the bolt 45. Thebrackets carry shafts which have the friction-wheels 46, similar to thewheels 29, above described.

The above device is held from swinging around shaft by the braces 47 47.These are rods hinged at their upper ends to the ceiling of the room orother fixed support and having their lower ends projected throughsleeves 48, which are hinged to the frame. Set-screws 49 hold anydesired adjustment of the rods in their respective sleeves. The pulley50 on the shaft of the lower disk is connected by belt 51 with themachine to be driven, and a tightening of the belt may be accomplishedby setting the braces 47 so as to move the frame, and thereby thebelt-pulley 50, in right direction to tighten the belt. The dotted linesin Fig. 6 show the parts in this changed position for tightening thebelt.

The disks 14 and 15 will preferably be made of. sheet metal of suchthinness as to be flexible to an extent that will cause any unevennessof surface to straighten out while passing the friction-wheels, and toadditionally safeguard against friction between the disks and theirfrictionwheels, which might be caused by sharp indentations or the likein the disk, we provide the elastic washers 52 between the head or nutof bolt 45 and the hangers which the bolt connects, whereby an amount ofplay sufiicient to afford relief is insured.

Having thus fully described our invention, what we claim as new, andwish to secure by Letters Patent, is-

1. In a speed-regulator, a pair of thin flexible disks mounted adjacentto each other in a common plane, pairs of friction-wheels one pair oneach side of said disks the two wheels of each pair contacting withopposite disks, a screw-threaded shaft, a stationary box having athreaded opening through which the threaded shaft passes, a pair ofsupportingframes hinged to said shaft on opposite sides of the twodisks, collars to prevent longitudinal displacement of the frames onsaid shaft, each of said frame-supports having a short shaft on which apair of said frictionwheels is mounted said short shafts, ascrewthreadedbolt connecting said-pair of supporting frames to regulate theirdistance apart and an elastic material under the nut of the bolt.

2. In a speed-regulator, a driving-shaft, a frame suspended from andhaving a swinging adjustment around said shaft, a flexible friction-diskmounted on said shaft within the frame, a second flexible friction-diskmounted within the frame below the first disk, auxiliary shafts,friction-wheels 'on said shafts forming driving connection between thedisks, and a brace adjustable in its length connected with the frame andwith a fixed support outside of said frame.

' 3. In a speed-regulator, a driving-shaft, a frame suspended from andhaving a swinging adjustment around said shaft, a split friction-disk ofthin flexible material mounted on said shaft Within the frame, a secondflexible friction-disk mounted within the frame below the first disk,auxiliary shafts, frictionwheels on said shafts forming drivingconnection between the disks, and a brace adjustable in its lengthconnected with the frame and with a fixed support outside of said frame.

In. witness whereof we have hereunto set our hands and seals, atIndianapolis, Indiana, this 7th day of October, A. D. 1902.

THOMAS NESOM. [L. s.] CHARLES T. NESOM. [L. s.]

Witnesses:

JOSEPH A. MINTURN, S. MAHLON UNGER.

